20659431

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 30983680

約数和(自身を除く): 10324249

約数列:

[1, 3, 13, 37, 39, 103, 111, 139, 309, 417, 481, 1339, 1443, 1807, 3811, 4017, 5143, 5421, 11433, 14317, 15429, 42951, 49543, 66859, 148629, 186121, 200577, 529729, 558363, 1589187, 6886477, 20659431]

約数ペア:

[(1, 20659431), (3, 6886477), (13, 1589187), (37, 558363), (39, 529729), (103, 200577), (111, 186121), (139, 148629), (309, 66859), (417, 49543), (481, 42951), (1339, 15429), (1443, 14317), (1807, 11433), (3811, 5421), (4017, 5143)]